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A231191 Number of (n+1)X(n+1) 0..2 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order 0
9, 1413, 2001156, 22370911245, 2000159147569783, 1426979668861283669236, 8127101616666745550335206754 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A231199

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=2

..0..1..2....0..0..1....0..1..2....0..0..1....0..1..1....0..1..2....0..1..2

..0..0..1....2..1..0....0..0..2....1..1..0....2..0..0....1..0..1....0..2..0

..2..0..2....0..2..1....1..0..2....0..2..1....1..1..0....1..0..0....0..2..1

CROSSREFS

Sequence in context: A213448 A120347 A230172 * A217267 A300594 A203649

Adjacent sequences:  A231188 A231189 A231190 * A231192 A231193 A231194

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 05 2013

STATUS

approved

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Last modified June 16 14:36 EDT 2021. Contains 345057 sequences. (Running on oeis4.)